KR101149919B1 - Holder for temperature sensor applied to evaporator in air-conditioner of vehicle - Google Patents

Abstract

In the holder for fixing the temperature sensor for sensing the temperature of the evaporator for the vehicle air conditioner, the present invention discloses a holder for fixing the temperature sensor that is easy to handle and adjust the length.

The holder for fixing the temperature sensor according to the present invention has a hollow cylindrical shape in which at least one side end portion is opened, and a guide groove is formed in the front and rear in the longitudinal direction from the opened side end portion, and extends from the guide groove in several positions. A fixing groove is dividedly formed in a circumferential direction, and an outer surface of the receiving member protrudes a plurality of fixing protrusions to which the temperature sensor is fitted; And an insertion member inserted into the receiving member through the open side end portion, the insertion member having a fitting protrusion guided through the guide groove and inserted into and fixed to the position fixing groove by a predetermined rotation. It is made, including.

Air-conditioning, thermistor, holder, evaporator.

Description

Holder for temperature sensor fixing {Holder for temperature sensor applied to evaporator in air-conditioner of vehicle}

1 to 2 is an exemplary view showing an embodiment of the present invention.

3 is an exploded perspective view of FIG. 1 and / or FIG.

Figure 4 is a partial perspective view of the insertion member forming the present invention.

Figure 5 is a side cross-sectional view of the holder for fixing the temperature sensor according to the present invention.

6 is an exemplary view showing an example of use of the holder for fixing the temperature sensor according to the present invention.

**** Explanation of symbols on the main parts of the drawing ****

10: accommodating member 11: fixed protrusion

12: Guide groove 13: Position fixing groove

20: insertion member 21: main body

22: neck 23: handle

21a: fitting protrusion 22a: fastener

23a: uneven portion 30: temperature sensor

31: Thermistor 32: Sheath

100: evaporator unit 200: evaporator

1: Japanese Pat. No. 6-12128.

2: Republic of Korea Utility Model No. 2001-1872.

The present invention relates to a holder for fixing a temperature sensor.

In detail, the present invention is a holder for fixing a temperature sensor for detecting the surface temperature of the evaporator for a vehicle air conditioner, it is possible to change the length more easily than in the prior art, it is possible to firmly maintain the changed state The present invention relates to a holder for fixing a temperature sensor.

As is known, a vehicle air conditioner basically consists of a compressor, a condenser, an expansion valve and an evaporator, and the refrigeration cycle compresses, condenses, and expands the refrigerant through the devices. , It consists of four steps of evaporation.

The compressor receives power from the engine at the time of cooling and compresses the refrigerant of low temperature and low pressure into a high temperature and high pressure state that is easily liquefied. The compressed refrigerant is discharged to the condenser as a high temperature and high pressure state. The condenser radiates this high-temperature, high-pressure refrigerant to a relatively low temperature outside air to liquefy the cooling liquid, whereby the refrigerant introduced into the condenser is condensed and phase-changed into a low-temperature, high-pressure liquid.

The expansion valve lowers the temperature and pressure of the liquefied refrigerant. The refrigerant flowing through the condenser expands rapidly as it passes through the expansion valve, which is phase-changed into a low temperature, low pressure, wet saturated gas. The refrigerant then finally enters the evaporator.

At the same time as the refrigerant flows through the evaporator, the blowing fan or the outside air is introduced into the vehicle through the evaporator. The refrigerant vaporizes as it flows through the evaporator, absorbs heat of air by the latent heat of evaporation, changes the phase into a gaseous state, and flows back into the compressor, and the heat-exchanged air is introduced into the vehicle at a low temperature to cool the inside of the vehicle.

However, at this time, since the refrigerant flowing through the evaporator is low temperature and low pressure, the phenomenon that the cold air is condensed on the surface of the evaporator by the temperature gradient between the front and back surface temperature of the evaporator and the relatively high external temperature. If the air temperature is a few degrees Celsius, condensation water forms on the surface of the evaporator after the initial condensation occurs, but as the temperature gradually lowers, dew freezes and partially sublimes again onto it.

Since this phenomenon acts as a cause of lowering the heat exchange efficiency of the evaporator, in order to prevent this, a temperature sensor for detecting the evaporation temperature is adopted on the surface of the evaporator or inside the evaporator core.

The temperature sensor is adopted to be detached from the evaporator unit to be inserted into the evaporator unit mainly from the outside, rather than fixedly coupled inside the evaporator unit. This is to prevent the harm of disassembling the whole evaporator unit for repair in case of malfunction or failure of the temperature sensor.

In addition, since the cable for electrical connection with the thermistor (thermal resistor) of the temperature sensor must be wired from the inside of the evaporator unit to the outside, the temperature sensor must have a structure that can be detached from the evaporator unit. The ball is formed.

The temperature sensor usually consists of a thermistor and a cable. The thermistor is a semiconductor circuit element whose electrical resistance decreases with increasing temperature, and the cable is a sheath for protecting the wire electrically connected to the thermistor.

However, since the temperature sensor cannot be fixed to the evaporator unit by itself, a holder is required for fixing, and since the evaporator unit is different in size and shape depending on the vehicle model, the holder must be provided so that the length can be changed.

As an example of the prior art, the holder disclosed in Japanese Patent Application Laid-Open No. Hei 6-12128 pushes and fixes a second engagement portion formed with a convex portion fitted to the notch portion in a first engagement portion where several notches are formed. At the distal end of the first and second engagement portions, a support part and a holding part are formed to fix the temperature sensor.

Through such a configuration, the temperature sensor holder of Japanese Patent Application Laid-Open No. 6-12128 can be adjusted in length.

However, when it is necessary to vary the length of the holder, the above-mentioned H6-6128128 is not easy to operate. In other words, the length of the holder can not be changed by manual operation, it is somewhat difficult to drop off all the convex parts inserted into the cutout, prior to this, the support and the retaining portion must also be disengaged. In addition, due to the complexity of the shape, it is somewhat difficult to manufacture, and the burden is also generated in terms of manufacturing cost.

The present invention has been made in view of various problems that are impossible or difficult to solve by the prior art in the technical field to which the present invention belongs, and the broad object of the present invention is completely new or less configuration than the prior art. It is to provide a holder for fixing the temperature sensor that can obtain a remarkable effect.

A specific object of the present invention is to provide a holder for fixing a temperature sensor that adopts a smaller technical configuration than the conventional one, and can easily vary the length by a simple rotational operation and is easy to handle.

The object of the present invention is not limited to the above object. Other objects of the present invention that are not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the following description and the accompanying drawings, and this also corresponds to the object of the present invention. .

In order to achieve the above object, the present invention adopts the following structure.

The holder for fixing the temperature sensor according to the present invention comprises a receiving member and an inserting member, wherein the receiving member is a hollow cylinder having at least one side end portion open, and the front and rear surfaces thereof in the longitudinal direction from the opened side end portion. A guide groove is formed, and extending from the guide groove, the plurality of position fixing grooves are divided in the circumferential direction, and the outer surface protrudes several fixing protrusions to which the temperature sensor is fitted.

In addition, the insertion member is inserted into the receiving member through the open side end portion, is guided through the guide groove is formed by the fitting projection fixed to the fixed position groove by a predetermined rotation.

In one embodiment, the insertion member may include a cylindrical body portion in which the fitting protrusion is formed; A neck part integrally formed at one end of the main body part and having several fastening holes for fixing to the evaporator unit; And a handle part integrally formed at one end of the neck and having an uneven portion formed on the outer surface thereof to prevent slipping. Characterized in that consists of.

Hereinafter, the present invention will be described in detail with reference to FIGS. 1 to 6, but detailed descriptions of well-known / public technologies that unnecessarily obscure the subject matter of the present invention will be omitted.

In addition, terms that are presented to refer to each part constituting the present invention are terms defined in consideration of functions in the present invention, which may vary according to the practice of the industry to which the present invention belongs, and the same components throughout the drawings. Reference numerals are given.

1 to 2 is an exemplary view showing an embodiment of the present invention, Figure 3 is an exploded perspective view of Figure 1 or / and 2.

The receiving member 10 is injection molded with a resin material, and basically forms a hollow cylindrical shape as shown. The receiving member 10 has one side end portion 10a open but the other side end portion 10b is closed, and the closed side end portion 10b has a hemispherical shape, for example. Achieve. And the receiving member 10 is formed with a guide groove 12 on the front and back surface in the longitudinal direction, extending from the guide groove 12 in the circumferential direction is divided into a number of position fixing groove (13). Preferably, the position fixing groove 13 is divided into equal intervals so that the neighboring intervals are equal.

In addition, several fixing protrusions 11 protrude from the outer surface of the receiving member 10. The fixing protrusion 11 is for fixing the temperature sensor 30 by inserting, and as shown, several pairs are divided at equal intervals.

Figure 4 is a partial perspective view of the insertion member constituting the present invention, Figure 5 is a side cross-sectional view of the holder for fixing the temperature sensor according to the present invention.

The insertion member 20 is composed of a main body portion 21, a neck portion 22 and the handle portion 23, preferably made of the same material as the receiving member 10. The main body portion 21 has a circular cross section, and an outer surface of which the fitting protrusion 21a is fitted to the position fixing groove 13 formed in the receiving member 10. In addition, the fitting protrusion 21a is divided into several pieces at equal intervals. Preferably, the neighboring gap is the same as the neighboring gap of the position fixing groove 13.

The neck portion 22 integrally formed with the main body portion 21 is formed with several fastening holes 22a for fastening to the evaporator unit 100, and the handle portion 23 has an uneven portion to prevent slipping. 23a is formed.

On the other hand, the reference numeral 31 is a thermistor which is an element for an electronic circuit which shows a rapid resistance change even with a small temperature change due to the low heat capacity, and the reference numeral 32 is a sheath 32 for protecting a cable electrically connected to the thermistor 31. to be.

In the holder for fixing the temperature sensor according to the present invention adopting such a technical configuration, the temperature sensor 30 is fixed to the fixing protrusion 11, but the thermistor 31 of the temperature sensor 30 is accommodated in the receiving member 10. The insertion member 20 in the receiving member 10 so as to be positioned at the closed side end portion 10b of the insertion member 20 so that the fitting protrusion 21a of the insertion member 20 is guided along the guide groove 12. Afterwards, the insertion is completed by rotating the insertion member 20 slightly toward the position fixing groove 13, and the fitting is completed by fitting the fitting protrusion 21a into the position fixing groove 13.

Thereafter, the holder is inserted through the opening 110 formed in the evaporator unit 100, and the fastener 300 is inserted and fastened through the fastening hole 120 around the fastening hole 22a and the opening 110. To the unit (100).

In FIG. 6, reference numeral 200 denotes an evaporator 200.

On the other hand, the length of the holder according to the present invention can vary according to the insertion depth of the insertion member 20, for example, as shown in Figure 1 push the insertion member 20 to the inside of the receiving member 10 to the end completely The holder has the minimum length when you insert and fix it.

In addition, when the holder is removed from the evaporator unit 100 or the temperature sensor is replaced for maintenance, maintenance, or the like, the reverse order of the above-described coupling procedure is used.

Holder for fixing the temperature sensor according to the present invention as described above is made by a simple combination of the insertion member and the receiving member, the length of the holder is variable according to the insertion depth of the insertion member can be easily adjusted the length of the holder It is easy to do.

In addition, the present invention, since the temperature sensor is attached to the outside as compared to the conventional one does not affect the performance of the temperature sensor at all, the configuration is adopted that is small and the shape is simple to manufacture and easy to reduce the manufacturing cost.

As described above with respect to the holder for fixing the temperature sensor according to the present invention, which is presented by at least one embodiment. Accordingly, the technical spirit of the present invention and its configuration and operation are not limited thereto, and the present invention may be variously modified, substituted, and changed without departing from the scope described in the claims below. In addition, the technical idea presented in the present invention may be used as a basis for modifying or designing another structure to carry out the same purpose of the present invention, but this is attributed to the technical idea and technical configuration proposed by the present invention.

Claims (2)

In the holder for fixing the temperature sensor for sensing the temperature of the evaporator 200 for a vehicle air conditioner, At least one side end portion is a hollow cylindrical shape, a guide groove 12 is formed on the front and back sides from the opened side end portion 10a, and extends from the guide groove 12 to form several position fixing grooves 13. The receiving member 10 is formed in the circumferential direction, the outer surface has a plurality of fixing projections (11) protruding fixed to the temperature sensor 30 is fitted; And The fitting protrusion 21a inserted into the receiving member 10 through the opened side end portion 10a and guided through the guide groove 12 and fitted into and fixed to the position fixing groove 13 by a predetermined rotation. Insertion member 20 is formed; Including, The insertion member 20 is formed in a cylindrical body portion 21 formed by dividing the fitting protrusion 21a at equal intervals, and one side end of the body portion 21, the evaporator 200 unit 100 Neck portion 22 formed with a plurality of fastening holes (22a) for fixing to), and formed on one side end of the neck portion 22, the handle portion 23 is formed on the outer surface uneven portion 23a for preventing slipping Holder for fixing the temperature sensor, characterized in that consisting of. delete

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